Numerical Simulation of Convection flow in Warm Bath and Its Possible mixing Behaviour

We have carried out an investigation of the mixing behaviour of fluid with different densities, were density was taken as a quadratic function of temperature and all flow parameters were kept fixed. The result showed that mixed dense fluid that have attained Tm or a temperature close to it was descending from the contact layer in the form of an inverted mushroom like structure towards the floor of the container. Most of the convection flow configurations considered in the past are such that the isothermal walls with heat generation are mostly the vertical walls or both the vertical and the horizontal walls. However, results by Cianfrini et al. 2015 with similar configuration appears similar as compared to ours as the authors also recorded the inverted mushroom like structure behaviour descending towards the floor of the container. Both vertical and horizontal velocity profiles were also considered at some point below the contact layer and plotted against the x-coordinate. The results as presented here are very good as they give insight into the mixing behaviour of a possible warm bath. Thus, it is true that whenever water of different densities come in contact, mixing will occur without any external mixing or perturbation: and any part of the fluid that have mixed up to the Tm will descend to the floor of the container if only either of the temperature is above the temperature of maximum density until the entire ambient fluid is induced through convection flow.